Theoretical Probability

Front

What is theoretical probability?

Back

Theoretical probability is the likelihood of an event happening based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

How do you calculate the probability of an event?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

If a bag contains 3 black marbles and 2 white marbles, what is the probability of picking a black marble?

Back

3/5

Front

What is the probability of spinning a red on a spinner divided into 5 equal sections with only 1 red section?

Back

1/5

Front

How do you express probability as a fraction?

Back

Probability can be expressed as a fraction by taking the number of successful outcomes and dividing it by the total number of outcomes.

Front

What is the probability of rolling a 3 on a fair six-sided die?

Back

1/6

Front

If a bag contains 5 green, 6 yellow, 8 blue, and 7 brown M&Ms, what is the probability of choosing a brown M&M?

Back

7/26

Front

What is the probability of choosing either a green or red marble from a bag containing 2 green and 3 red marbles?

Back

2/5

Front

What does it mean if an event is certain?

Back

An event is certain if it has a probability of 1, meaning it will definitely happen.

Front

What does it mean if an event is impossible?

Back

An event is impossible if it has a probability of 0, meaning it cannot happen.